What inventions and developments the midwest to become a hub of transportation and trade? explain.

For the inventions, it was steamboats that helped the Midwest. It's capable of bringing tons of cargo for the sake of better trading benefits. For the developments, rail lines were made from the Midwest to the rest of the other countries. As time went by, interstate highways linked a lot of states in the Midwest for easier means of transportation, too.

The preamble explains the reasons  why ben franklin and the other founding fathers  of the constitution made our government a republic. by doing this they also replaced the articles of confederation